incentive/psopeeps-newserv
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add PSO GC snapshot decoder

Browse Source
This commit is contained in:
Martin Michelsen
2023-08-15 22:11:18 -07:00
parent c0f4f7af5f
commit 666464dd06
4 changed files with 85 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/Main.cc
+27
View File
@@ -273,6 +273,7 @@ enum class Behavior {
DECRYPT_CHALLENGE_DATA,
ENCRYPT_GCI_SAVE,
DECRYPT_GCI_SAVE,
DECODE_GCI_SNAPSHOT,
FIND_DECRYPTION_SEED,
SALVAGE_GCI,
DECODE_QUEST_FILE,
@@ -314,6 +315,7 @@ static bool behavior_takes_input_filename(Behavior b) {
(b == Behavior::ENCRYPT_CHALLENGE_DATA) ||
(b == Behavior::DECRYPT_CHALLENGE_DATA) ||
(b == Behavior::DECRYPT_GCI_SAVE) ||
(b == Behavior::DECODE_GCI_SNAPSHOT) ||
(b == Behavior::SALVAGE_GCI) ||
(b == Behavior::ENCRYPT_GCI_SAVE) ||
(b == Behavior::DECODE_QUEST_FILE) ||
@@ -347,6 +349,7 @@ static bool behavior_takes_output_filename(Behavior b) {
(b == Behavior::DECRYPT_CHALLENGE_DATA) ||
(b == Behavior::DECRYPT_GCI_SAVE) ||
(b == Behavior::ENCRYPT_GCI_SAVE) ||
(b == Behavior::DECODE_GCI_SNAPSHOT) ||
(b == Behavior::ENCODE_QST) ||
(b == Behavior::DISASSEMBLE_QUEST_SCRIPT) ||
(b == Behavior::CONVERT_ITEMRT_REL_TO_JSON) ||
@@ -520,6 +523,8 @@ int main(int argc, char** argv) {
behavior = Behavior::DECRYPT_GCI_SAVE;
} else if (!strcmp(argv[x], "encrypt-gci-save")) {
behavior = Behavior::ENCRYPT_GCI_SAVE;
} else if (!strcmp(argv[x], "decode-gci-snapshot")) {
behavior = Behavior::DECODE_GCI_SNAPSHOT;
} else if (!strcmp(argv[x], "find-decryption-seed")) {
behavior = Behavior::FIND_DECRYPTION_SEED;
} else if (!strcmp(argv[x], "salvage-gci")) {
@@ -639,6 +644,8 @@ int main(int argc, char** argv) {
} else {
filename += ".dec";
}
} else if (behavior == Behavior::DECODE_GCI_SNAPSHOT) {
filename += ".bmp";
} else if (behavior == Behavior::DISASSEMBLE_QUEST_SCRIPT) {
filename += ".txt";
} else if (behavior == Behavior::CONVERT_ITEMRT_REL_TO_JSON) {
@@ -968,6 +975,26 @@ int main(int argc, char** argv) {
break;
}
case Behavior::DECODE_GCI_SNAPSHOT: {
auto data = read_input_data();
StringReader r(data);
const auto& header = r.get<PSOGCIFileHeader>();
try {
header.check();
} catch (const exception& e) {
log_warning("File header failed validation (%s)", e.what());
}
const auto& file = r.get<PSOGCSnapshotFile>();
if (!file.checksum_correct()) {
log_warning("File internal checksum is incorrect");
}
auto img = file.decode_image();
string saved = img.save(Image::Format::WINDOWS_BITMAP);
write_output_data(saved.data(), saved.size());
break;
}
case Behavior::SALVAGE_GCI: {
uint64_t likely_round1_seed = 0xFFFFFFFFFFFFFFFF;
if (system_filename) {